Grease-gun.



H, M. DAVIS. GREASE Gun;

APPLICATION FILED OCT. 6.19M.

Patented wee. 21, 1915- 3 2 SHE I'S-SHEET r.

lA/l/E/VTOR .zramaws WIT/1155858 A TT/JRll/EYS H. M. DAVIS.

GREASE GUN. APPLICATION FILED ocr, 6. 1914.

INVENTOR raw Faye;

. TTOR/VEYS 1 2 WEWS WEH 2 W/T/VESSES Q W4.

HAROLD M. DAVIS, F ELIZABETI-ITOWN, NEW 5103K.

GREASE-GUN.

To: all "whom it may concern p.

Be it known that I, HAROLD MJDAVIs, a

i citizen of the United States, and a resident.

. .cial reference to the lubrication of leaf;

of Elizabethtown, in the county of Essex and State of New York, have invented certain new and useful Improvements in (irrease-Guns, of, WlllCll the following is a specification.

My invention relates to lubricant containers particularly adapted for use on vehicles, such as automobiles, and having espesprings, and the main object thereof is to provide such gun which is adapted to be inserted between two leaves of such springs after they have been separated b means of i a suitable .implement or tool and rom which the lubricant maybe forced in desired quan tity and at desired points by one hand of the adapted for the purpose'for which they are designed, positive in-iind easy of operation,

- and. comparatively inexpensive.

My invention is fully describedin the following specification, of which the aceompanying drawings form a part, in whichthe separate parts are designated by'the same reference characters in each of the views,

and in which:. I

Figure 1 is a side elevation of a grease gun constructed in accordance with my resent invention Fig. 2 is a top plan view t iereof Fig; 3 is a fragmentary detail section taken h "grease being expelled 1s thus under positive Y on the line 3 -3 of Fig. 1; Fig. 4 isaside.

view of. a modification of a gun tip which I. employgsFig. 5'is a longitudinal, vertical, section taken through the gun, empty, and

in extended position of the parts; F 6 is a similar, fragmentary, section, showing my 'means for filling the grease gun; Fig. 7 is adetached, perspective, view of the filleri and Fig. 8 isa detached view of a paddle which I employ in connection with said filler. In the drawings forming apart of this application have shown one form of em-- bodiment of my invention, comprising a cylindrical barrel 9 having'a discharge tip 10 Specification of Letters Patent. p t t D60, 21, 1935;, Application filed October 6, 1914., Serial No. 865,233. 7

which passes a rody12 carrying a suitably packed piston 13 upon its end within the barrel, said tip 10 being divided into conipartments by means of a partition 14 and having discharge ports'15 and 16 for said compartments,and, by reference to Fig. 2, l T

it will be noted that the tip is of relatively "slight thicknesswith respect, to its width,

to enable it'to be inserted between the leaves of a spring.

Surrounding the pistona'od 12 is atube 17 threaded into the barrel head 11 at one end. and secured ,to an arm 18 atits outer end and which arm is secured to a slotted guide 19 for a sliding rack 20 havinga downwardly directed arm 21securedto the outer end-"of the piston-rod 12, the tube 17 being slotted at- 22 to permit the movement of said am 21, and it will be seen that-,when

the rack 20 is actuated forwardly in a manner to be explained, the piston 13 is forced forwardly to expel the grease from the barrel 9.

Pivoted at 23, to the guide 19 in the form shown, is a forked lever 24' extended rear-v wardly over said guide and the contained rack 20, and tl'ierear end of which is spoon shaped to serveas a rest for thethumb of an operator, a gr1p plate 25 being provided and manipulated with one hand; aninbeneath the tube 17 for. the fingers of the same hand whereby the device may be held wardly directed pawl 26 is pivoted to the X lever 24, between the forked tines thereof, b

at 2 7,. and the inner end of which is main rack 20 .by p'ie ans of a spring 28, and it will be seen thatf'if the lever 24 be'manuallyre- 'tained in engagement-with the teeth of the p ciprocated, the piston 13 is forced forj wardly, step-by-step, and the amount of control and requiring but one hand of the operator instead of, as in the conventional the grease in athin ribbon of consider-a l'e width, and the'jfact that ifbut one discharge slot be rovided the grease will only exude frome gun adjacent the forward closed end of the tip 10, I provide the partition 14: and two discharge slots, or possibly more partitions and slots, in order to equalize;

the pressure along the full length of the tip, I

a plurality of relatively narrow ribbons of grease resulting which, however, merge into one ribbon exteriorly of the tip.

tainerIand rotated therein to fill the same,

after which said filler'is inserted into the barrel 9, the tip 10 having been previously removed, the external diameter of said filler approximating the internal diameter of the barrel, as shown ,in Fig. 6; when said filler has been charged with the lubricant, apaddie 33 is forced through the slot 32 thereof and rotated through an arc of 90 degrees of a circle, thus bringing said paddle into transverse relationship with said filler, this being as close to the handle 31 as is possible, after. which said filler is moved entirely within the barrel, the handle 31 grasped with one hand and the handle 34 0f the paddle With the other hand and said filler is forcibly drawn out of the barrel while the paddle is maintained in close proximity to the end of said barrel, and this discharges the lubricant from the tiller and into the barrel; when the filler has been so removed from the barrel, the tip 10 may be replaced and the gun is then ready for use, audit will be noted that the operator need not i soil his hands at any stage of the charging 0r discharging of either the filleror the gun 40 barrel.

While I have shown and described certain details of construction, it will be understood,

that I do not limit myself-thereto, but' may make changes thereover, and modifications thereof, within the scope of the follow ing claim, without departing from the spirit of my invention, or sacrificing its advantages.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is:

A grease gun, comprising a barrel, :1. discharge tip thereon, a piston therein, a rod connected to said piston and extending out of said barrel, a slotted tube inclosing said rod and in detachable engagement with said barrel, an arm carried by said rod and slidable in said slot of said tube, a rack carried by said arm cxteriorly of said barrel, a guide for said rack connected with said tube and with said barrel, and amanually operable pawl in pivotal connection with said guide adapted to move said rack step by step -to correspondingly force said 6 piston toward said tip.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HAROLD M. DAVIS.

Witnesses: v

JOHN C. Rinuy, ALEXANDER WILSON. 

